Lubricating device



May 13, 1930. E. CUDDIHY LUBRICA'IINGVDEVICE Filed June 5, 1928 INVENTO'R Edit 22rd 11022219 A T T ORNE Y Patented May 13, 1930 UNITED STATES EDWARD CUDDIHY, F TOOELE, UTAH LUBRICATING DEVICE Application filed .Tune 5, 1928. Serial No. 282,926.

The invention aims to provide an improved device especially designed for lubricating sintering machines.

The drawings show an embodiment of the invention. 1

Fig. 1 is a side elevation of the invention applied to part of a Dwight-Lloyd sintering machine;

Fig. 2 is a transverse section on the line A-A of Fig. 1, showing also the wind box above which the pallets and oil device are located;

Fig. 3 is an enlarged side view of the oil apparatus and the pallet rollers adjacent thereto, the view being taken approximately on the line BB of Fig. 2;

Fig. 4 is a section substantially on the line C-C of Fig. 3;

Fig. 5 is a detail of the valve in the opposite position to that of Fig. 4.

The pallet frames 1 carry rollers 2 which for the greater part of their travel run on rails. The pallets travel first under a filling bin, thence over a wind box where the material is ignited on top and a downward suction exerted through them to sinter the embedded material, thence to the end of their support where they are inverted and dumped and back in a continuous chain to the starting point.

In passing over the wind box- 3, Fig. 2, the pallet frames rest on wearing strips 4 to make a substantially airtight joint.

The lubricating device is intended to lubricate the bearings of the rollers 2. It may be located anywhere along the line. But preferably it is located adjacent to the wind box where the rollers do not run on rails and are, therefore, free to turn on their shafts.

The oil is carried in a reservoir 5 from which a pipe 6 leads to a valve 7 which in turn leads to a pipe 8, the bottom of which is just above the line of travel of the ends of hubs 9 on the pallet frame which carry the stub shafts 10 ofthe rollers. Each of the hubs 9 is preferably provided with a recess or slot 11 to receive the oil from the pipe 8 and guide it to the stub shaft. A pipe T 12 is inserted in the pipe 8 to form a vent which admits air and prevents the holding up of the oil by capillary attraction in the pipe 8. Y

The valve 7 has a'stem 13, Fig. 3, on which is an arm 14 from which depends a link 15 pivotally connected atits lower end to the long arm 16 of a lever whose shortarm 17 carries a roller 18 lying in the path oftravel of the rollers 2.

The valve 7 is carried in a bracket 19 on the end of an upright support 20 mounted on a part 21 of the fixed frame of the machine. The lever 16, 17 is supported on a similarly mounted upright 22. The latter carries an adjustable stop 23 which limits the downward movement of the arm 17.

With the parts in the full line position of Fig. 8, one of the rollers 2 moving in the direction of the arrow has just passed under the roller 18, lifted it to the position shown in dotted lines and allowed it to fall back to the position of rest. The arm 17 on being lifted has pressed down the arm 16 which through the link 15 and arm 14 has turned the valve 7 to the position of Fig. 5; after which the restoration of the lever to its normal position turns the valve back to the position of Fig. 4.

The valve has an angular port 24 so located that in the position of Fig. 5 it receives a drop or two of oil from the pipe 6, being closed at the time from the pipe 8, and in the position of Fig. 4 cuts off the pipe 6 and discharges into the pipe 8 and drops the oil on the roller bearing.

The length of the lever 16, 17 is adjusted to bring one of these bearings under the pipe 8 as the roller 18 is dropped to its normal position after passing over another one of the pallet rollers. Thus each of the pallet rollers is lubricated in turn as the chain of pallets passes the lubricating device.

One of the lubricating devices described is applied to each side of the machine as shown in Fig. 2. The lubricating operation is continuous as long as the machine runs. But it avoids waste of the lubricant by ceasing to function when the machine stops. The valve can be proportioned to pass at each operation exactly the quantity of oil required.

Various modifications in detail and in the arrangement of the parts may be made by those skilled in the art Without departing from the invention as defined in the following claim:

A sintering machine having a moving chain of pallets carrying rollers, said machine having supports on which the pallets are supported independently of the rollers and slide for a part of their travel, leaving the rollers free to turn, and having rails on which the pallets are supported by said rollers for another part of their travel, in combination with means for lubricating the bearings of said rollers comprising an intermittently operating device for applying the lubricant to each bearing as it passes such device, said lubricating device being actuated by the successive rollers as they pass a part of the machine Where the pallets are supported independently of the rollers and the latter are free to turn.

In Witness whereof, I have hereunto signed my name.

EWVARD CUDDII-IY. 

